What's on in Kumamoto, Japan through the year
Kumamoto, Japan has 5 curated events through the year — 1 festival, 1 natural spectacle, 1 holiday and 2 hazard seasons. The ones to plan around: Fujisaki Hachimangu autumn festival (September) and Castle cherry blossom (March). March to May are its peak-crowd months.
Updated September 2026 · every event curated and sourced · dates for 2026 where they are announced, the usual window where they are not
Kumamoto events and crowds by month
January in Kumamoto
Kumamoto weather in January →Busy — Winter break (fuyuyasumi) in Japan, school holidays in 5 of the markets that fill it
- Hazard
Mount Aso crater alerts
1 Jan – 31 DecVolcanic activityClosuresNakadake is the day trip everyone books and the one that gets cancelled: the crater rim closes without notice on gas readings or a raised alert, and has been shut for long stretches. Check before you drive out. Source ↗
February in Kumamoto
Kumamoto weather in February →Shoulder season — school holidays in 2 of the markets that fill it, an ordinary month
Nothing new starts in February.
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)
March in Kumamoto
Kumamoto weather in March →Peak crowds — Castle cherry blossom, Spring break (haruyasumi) in Japan
- Nature
Castle cherry blossom
25 Mar – 10 Apr · usuallyCrowdedThe castle grounds are the city's hanami spot and the reconstruction scaffolding does not put anyone off. Kyushu goes early, so this is usually done before the Tokyo reports start. Source ↗
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)
April in Kumamoto
Kumamoto weather in April →Peak crowds — Castle cherry blossom, Golden Week
- Holiday
Golden Week
29 Apr – 5 MayCrowdedBook earlyThe week the country drives, and Kumamoto is on the road to Aso and the Kurokawa hot springs. Expect the Aso road to move at walking pace and the ryokan to have been taken in winter. Source ↗
Still on: Mount Aso crater alerts (1 Jan – 31 Dec), Castle cherry blossom (25 Mar – 10 Apr (usually))
May in Kumamoto
Kumamoto weather in May →Peak crowds — Golden Week, Golden Week in Japan
Nothing new starts in May.
Still on: Mount Aso crater alerts (1 Jan – 31 Dec), Golden Week (29 Apr – 5 May)
June in Kumamoto
Kumamoto weather in June →Quiet — school holidays in 3 of the markets that fill it, one of its worst months for weather
Nothing new starts in June.
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)
July in Kumamoto
Kumamoto weather in July →Busy — Summer break (natsuyasumi) in Japan, school holidays in 4 of the markets that fill it
Nothing new starts in July.
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)
August in Kumamoto
Kumamoto weather in August →Busy — Summer break (natsuyasumi) in Japan, school holidays in 3 of the markets that fill it
- Hazard
Typhoon season
1 Aug – 30 Sep · usuallyClosuresKyushu takes more direct hits than anywhere else in Japan and a landfall stops the trains and the airport for a day. Storms are not spread evenly through the year and these are the two months. Source ↗
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)
September in Kumamoto
Kumamoto weather in September →Busy — Fujisaki Hachimangu autumn festival, school holidays in 3 of the markets that fill it
- Festival
Fujisaki Hachimangu autumn festival
10–20 Sep · usuallyMajor festivalCrowdedThe city's own festival, run around decorated horses and a drumming crowd that walks them through the centre for hours. Roads shut and the whole place turns out for it. Source ↗
Still on: Mount Aso crater alerts (1 Jan – 31 Dec), Typhoon season (1 Aug – 30 Sep (usually))
October in Kumamoto
Kumamoto weather in October →Busy — school holidays in 3 of the markets that fill it, one of its best months for weather
Nothing new starts in October.
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)
November in Kumamoto
Kumamoto weather in November →Busy — one of its best months for weather
Nothing new starts in November.
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)
December in Kumamoto
Kumamoto weather in December →Busy — Winter break (fuyuyasumi) in Japan, school holidays in 4 of the markets that fill it
Nothing new starts in December.
Still on: Mount Aso crater alerts (1 Jan – 31 Dec)